Insmed Incorporated
US ˙ NasdaqGS ˙ US4576693075

SecurityINSM / Insmed Incorporated
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership270,700 shares
Latest Disclosed Value $ 44,264,820
Neuberger Berman Group LLC reports 30.23% increase in ownership of INSM / Insmed Incorporated

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 270,700 shares of Insmed Incorporated (US:INSM) valued at $44,264,864 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 207,869 shares of Insmed Incorporated. This represents a change in shares of 30.23% during the quarter. The current value of the position is $25,505,354 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F INSMED Common 457669307 270,700 62,831 30.23 44,265 22.35 0.0172
2026-02-13 2025-12-31 13F INSMED Common 457669307 207,869 57,763 38.48 36,177 67.36 0.0269
2025-11-12 2025-09-30 13F INSMED Common 457669307 150,106 139,211 1,277.75 21,617 1,872.26 0.0158
2025-08-25 2025-06-30 13F/A-1 INSMED Common 457669307 10,895 -165,738 -93.83 1,096 -91.87 0.0008
2025-08-13 2025-06-30 13F INSMED Common 457669307 10,895 -165,738 1,096 0.0004
2025-05-13 2025-03-31 13F INSMED Common 457669307 176,633 27,392 18.35 13,475 30.79 0.0113
2025-02-13 2024-12-31 13F INSMED Common 457669307 149,241 37,403 33.44 10,304 26.20 0.0082
2024-11-14 2024-09-30 13F INSMED Common 457669307 111,838 -1,910 -1.68 8,164 7.13 0.0064
2024-11-14 2024-06-30 13F/A-1 INSMED Common 457669307 113,748 -57,169 -33.45 7,621 64.39 0.0063
2024-08-13 2024-06-30 13F INSMED Common 457669307 113,748 -57,169 7,621 0.0063
2024-11-14 2024-03-31 13F/A-1 INSMED Common 457669307 170,917 1,989 1.18 4,637 -11.44 0.0038
2024-05-13 2024-03-31 13F INSMED Common 457669307 170,917 1,989 4,637 0.0038
2024-11-14 2023-12-31 13F/A-2 INSMED Common 457669307 168,928 59,424 54.27 5,235 89.40 0.0046
2024-02-09 2023-12-31 13F INSMED Common 457669307 168,928 59,424 5,235 0.0046
2023-11-14 2023-09-30 13F INSMED Common 457669307 109,504 -146,706 -57.26 2,765 -48.87 0.0025
2023-08-11 2023-06-30 13F INSMED Common 457669307 256,210 107,402 72.17 5,406 113.09 0.0048
2023-05-12 2023-03-31 13F INSMED Common 457669307 148,808 11,245 8.17 2,537 -7.68 0.0024
2023-02-13 2022-12-31 13F INSMED Common 457669307 137,563 50,204 57.47 2,749 46.01 0.0027
2022-11-15 2022-09-30 13F INSMED Common 457669307 87,359 -288 -0.33 1,882 8.91 0.0020
2022-08-15 2022-06-30 13F INSMED Common 457669307 87,647 36,347 70.85 1,728 43.28 0.0017
2022-05-23 2022-03-31 13F/A-1 INSMED Common 457669307 51,300 5,113 11.07 1,206 -3.60 0.0010
2022-05-13 2022-03-31 13F INSMED Common 457669307 51,300 5,113 1,151 0.0005
2022-02-11 2021-12-31 13F INSMED Common 457669307 46,187 30 0.06 1,251 -1.11 0.0010
2021-11-12 2021-09-30 13F INSMED Common 457669307 46,157 -75,000 -61.90 1,265 -63.25 0.0011
2021-08-13 2021-06-30 13F INSMED Common 457669307 121,157 121,157 3,442 0.0030
2016-01-28 2015-12-31 13F INSMED COMMON STOCK 457669307 0 0 0 0.0000
2015-11-10 2015-09-30 13F INSMED COMMON STOCK 457669307 0 -34,400 -100.00 0 -100.00
2015-07-31 2015-06-30 13F INSMED COMMON STOCK 457669307 34,400 8,400 32.31 840 55.27 0.0009
2015-05-06 2015-03-31 13F INSMED COMMON STOCK 457669307 26,000 26,000 -24.42 541 -35.60 0.0006
2014-02-11 2013-12-31 13F INSMED COMMON STOCK 457669307 0 -86,900 -100.00 0 -100.00
2013-10-29 2013-09-30 13F/A-1 INSMED COMMON STOCK 457669307 86,900 86,900 1,357 0.0015
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.